One of her old companions

Teysa slithered through the caverns. Trial and error demonstrated that her most efficient form of locomotion was a sort of rolling crawl, pulling herself along with her tentacles. The stalagmites offered plentiful handholds and her body, though soft and gooey, didn't seem to pick up any of the dirt or debris she rolled over. In fact, she felt an odd tingling sensation. Somewhere in the back of her mind she realized what was going on: her body was absorbing all organic matter it passed over and beginning to digest it.

Well, good. She was hungry.

The cave was pitch black, but she seemed to have other senses than those she had grown used to, because she could sense the terrain around her and the tiny cave creatures fleeing before her. Suddenly, ahead: movement. Something large-- or at least, larger than a cave mole or bat-- and moving with purpose. Teysa flattened herself out even further and crept up slowly and quietly to see.